FOB Price
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Minimum Order
Place of Origin:
-
Price for Minimum Order:
-
Minimum Order Quantity:
500 Kilogram
Packaging Detail:
net 25kg per paper carton
Delivery Time:
15days after order confirmation date
Supplying Ability:
18000 Ton per Year
Payment Type:
T/T, L/C, D/P
الشخص الذي يمكن الاتصال به Ms. Susan
A-15J HIBC No. 9 Changjiang Avenue, Shijiazhuang, Hebei
Description
Ascorbic Acid is an
odorless white or almost white crystalline powder with an acidic
taste; the color may change to pale yellow when stored for a long
time .It easily dissolves in water, hardly in ethanol and is
insoluble in chloroform and ethoxyethane. It decomposes at about
**0°C.
Product identification
Chemical
names
(5R)**- [(1s)*1,
*-Dihydroxyethyl]*3, *-dihydroxyfuran*2(5H)-one
Synonyms
L-ascorbic acid; L-xylo-ascorbic acid;
L-(+)-ascorbic acid; vitamin C
CAS
No
******7
Einecs-No
********2
E
No
E **0
Empirical
formula
C6H8O6
Molecular
mass
**6.*3 g/mol
Particle
size:
Standard
grade: max *0% above
*0 mesh
*0—*0% between ****0 mesh
max *0% through *0 mesh
Specifications
| Item | Standard |
| Appearance | White or almost white crystalline powder |
| Solution 5% in water | Clear and colorless |
| Identity | Corresponds (method:IR) |
| Specific rotation, **9 n m(c=*0 in water) |
**0.5° to **1.5° |
| Melting point | About **0℃ |
| Loss on drying | Max.0.4% |
| Sulphated ash (residue on ignition) |
Max.0.1% |
| Heavy metals | Max.*0ppm |
| Lead | Max.2ppm |
| Copper | Max.5ppm |
| Iron | Max.2ppm |
| Arsenic | Max.3ppm |
| Mercury | Max.0.1ppm |
| Cadmium | Max.0.5ppm |
| Zinc | Max.0.5ppm |
| Oxalic acid | Max.0.2% |
| pH (2% solution) | 2.**2.8 |
| Residual methanol | ≤**0ppm |
| Related Subctance | |
| Impurity C | ≤0.1% |
| Impurity D | ≤0.*0% |
| Any Other Unspecific Impurities | ≤0.*0% |
| Total Impurities | ≤0.2% |
| Assay | *9.****1.0%(method:Titration) |
| Total plate count | ≤***0CFU/g |
| Total molds yeasts | ≤**0CFU/g |
| Coli form organisms | Negative/g |
| Salmonella | Negative/*0g |
| Staphylococcus aureus | Negative/g |
| Shelf life | three years |
Solubility
It
easily dissolves in water, hardly in ethanol and is insoluble in
chloroform and ethoxyethane.
Stability and
storage
Ascorbic Acid is fairly stable to air if
protected from humidity, but is somewhat sensitive to heat. The
product may be stored for *6 months from the date of manufacture in
the unopened original container and at room temperature below
*5℃。On prolonged storage, a slight
yellow discoloration may occur which, however, does not affect the
biological activity.
Uses
This product is used for the enrichment,
standardization of dry food preparations and drinks, for the
improvement of the baking qualities of flour, for solid and liquid
multivitamin and monoviitamin preparations and as an agent in dry
mixes for curing meat. This product is not intended for use in the
manufacture of sterile drug products. The purchaser assumes all
responsibility for additional processing, testing, labeling and
registration required for such use.
Compendial compliance
Ascorbic Acid meets all requirement of the
FCC. and Ph.Eur. and USP .and BP. when tested according to these
compendia.
Safety
This product is safe for the intended use.
Avoid ingestion, inhalation of dust or direct contact by applying
suitable protective measures and personal hygiene. For full safety
information and necessary precautions, please refer to the
respective Material Safety Data Sheet
